Use the Gauss-Jordan method to solve the system of equations. x + 3y + 2z = 11 4y + 9z = -12x + 7y + 11z = -11
A. (0, 3, 1)
B. (7, -1, -1)
C. (1, 6, -4)
D. No solution
Answer: D
Mathematics
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× 
A. 5
B. 36
C. 4
D. 5
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Graph the equation.
- 
= 1
A. 
B. 
C. 
D. 
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Find the center and radius of the circle with the given equation. (x - 1.7)2 + (y + 4.7)2 = 7
A. (1.7, -4.7); r = 
B. (1.7, -4.7); r = 7
C. (4.7, -1.7); r = 7
D. (4.7, -1.7); r = 
Mathematics
Divide and write the answer in the form a + bi. Let z = 5 - i and w = -6 - 2i. Find 
.
A. - 
- 
i
B. 
i
C. - 
+ 
i
D. - 
Mathematics